Trench integrated mine collecting and mining method of inclined ore body

A mining method and ore gathering technology, which are applied in surface mining, mining equipment, underground mining, etc., can solve the problems of low collection efficiency of caving ore, bottom structure construction, and high mining loss rate, so as to reduce the exposed area of ​​the upper wall and reduce equipment. The effect of less loss and fewer work adjustments
CN107654232AActive Publication Date: 2018-02-02CHINA MINMETALS CHANGSHA MINING RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA MINMETALS CHANGSHA MINING RES INST
Publication Date
2018-02-02

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Abstract

The invention discloses a trench integrated mine collecting and mining method of an inclined ore body. A trench construction area is arranged in an empty area formed after mining. Trench constructionof the trench construction area specifically includes the steps that a trench slope used for guiding falling ore to move downward and / or protect the upper disc surface of the ore body is constructed at the corner of the upper disc surface and a bottom plate surface of the trench construction area; a mine collecting channel is reserved in the bottom plate surface when the trench slope is constructed, and the constructed trench slope, the reserved mine collecting channel and the lower disc slope of the ore body form a trench used for gathering the falling ore extracted from the upper portion ofthe trench to the mine collecting channel; the ore body on the upper portion of the trench is extracted and output from the upper portion and / or the side face of the mine collecting channel. The method easily improves the ore recovery rate, ore output efficiency, productivity, recovery safety and comprehensive economic benefits, and is suitable for exploitation of inclined ore bodies with medium stability from thin to medium thick and construction of a trench type mine output bottom structure.
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Description

technical field

[0001] The invention relates to the technical field of mine mining, in particular to a mining method for cutting and ditch retaining wall of an inclined ore body and ore extraction. Background technique

[0002] Most of the ore bodies are inclined ore bodies, but when the inclination angle of the ore body is small, first, the collapsed ore between the surrounding rock of the ore body wall and the layered filling body is extremely difficult to recover due to space constraints, resulting in extreme Large mining loss, this situation generally increases with the decrease of the included angle. Second, the exposed span of the hanging wall of the ore body is large, and the surrounding rock caving on the hanging wall causes ore dilution, and the safety of mining cannot be guaranteed. Bolts and anchor cables are often used for support, which requires a large amount of support work and low efficiency. Low. Third, after the ore body collapses, due to blasting, the or...

Claims

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